Table 4 The expression of certain long noncoding RNAs during the progression of mammalian spermatogenesis

Gm11837

Chr.4: 14929908–14953030 (23122 bp)

Highly expressed in adult mouse testis [53]

LncRNA-Gm2044

Chr.7: 139957005–139958039 (1034 bp)

Highly expressed in spermatocytes [78]

LncRNA H19

Chr.7:142575529–142578143 (2.6 kb)

Highly expressed in testis [5]

Meiotic recombination hot spot1 locus (Mrhl)

Chr.8:85994245–85996642 (∼2.4 kb)

Expressed in spermatogonial Gc1-Spg (derived from type B spermatogonia) cells [79]

AK007004

Chr.12:82932520–82939155

Low expressions in male germ cells [80]

AK015322

Chr.12:26814371–26834873

Highly expressed in spermatogonial stem cells [36]

1700101O22Rik

Chr.12: 7372039–7380330 (8291 bp)

Highly expressed in testicular germ cells in the meiotic prophase and round spermatocyte stage of spermatogenesis [53]

lncRNA4667

Chr.13:23396074–23397418 (1.3 kb)

Highly expressed in round spermatids [55]

1700108J01Rik

Chr.14:122229905–122233638 (3733 bp)

Specifically expressed in testis and highly expressed in testicular germ cells during testicular spermatogenesis [53]

LncRNA HOTAIR

Chr.15:102944062–102947730 (∼3.7 kb)

Low processes in the spermatozoa of patients with asthenozoospermia and oligoasthenozoospermia [57]

Metastasis-associated lung adenocarcinoma transcript 1 (Malat1)

Chr.19:5795690–5802671 (∼7 kb)

Expressed in sperm cells and intestinal cells of testis [19]

LncRNA-Tsx

Chr.X

Expressed in meiotic germ cells [81]

LncRNA-Xist (X-inactive specific transcripts)

Chr.X:103460373–103483233

Highly expressed in male germ cells [81]

Tslrn1 (1700019B21Rik)

Chr.X:62510539–62527011 (∼16.5 kb)

Highly expressed in pachytene spermatocytes [54]

Tesra

4435 bp

Highly expressed in the nuclei of pachytene spermatocytes [82]

LncRNA-Tcam1

2.4 kb

Expressed in mouse male germ cells [55]

LncRNA033862

∼6.4 kb

Highly expressed in mouse spermat- ogonial stem cells especially in early spermatogonia [80]